At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
If the fan is moving air at the proper velocity, it is most likely a clog in the heater core or the hose leading into it. Generally, there are 2 hoses about 1 inch in diameter going through the firewall. Those hoses go into a small radiator inside the cars passenger compartment. Go to YouTube and look for 2002 Silhouette heater core removal for specifics. If warm radiator water won't flow freely through the core, that's the problem.
Could be a blend door problem. You would need fresh air from the outside to keep the windows from fogging up. If the blend door that controls outside air gets stuck or fails to open, you may not get fresh air. The ac compressor would also need to run every few minutes to dry the air hitting the windshield.
If it is necessary to remove the heater assembly, the cooling system must be drained before removing the heater core.
When a heater core leaks, a new heater core is installed or the old one repaired. Heater Housing
The heater housing is usually under the dash and must be removed to gain access to the heater core.
Procedures for replacing the heater core vary with the year, make, and model of car. It threfore necessary to consult the manufacturer's repair manuals for the proper procedure for replacement.
The heater housing is disassembled to get to the heater core.
Heater Core
Remove the access panels(s) or the split heater/air conditioning case to gain acess to the heater core.
Remove the heater coolant hoses.
Remove the cable and/or vacuum control lines (if equipped).
Remove the heater core securing brackets and/or clamps.
Lift the core from the case. Do not use force. Take care not to damage the fins of the heater core when removing.
To reinstall the heater core, reverse the removal steps.
When the heater core leaks and must be repaired or replaced, it is a very difficult and time-consuming job primarily because of the core's location deep within the firewall of the car. For this reason always leak test a replacement heater core before installation
The car has overheated and the top gasket has probably blown. You will have to check the oil and if it is milky there is water in and the top gasket is blown. The motor have to be reconditioned.
Check the water level. If the water is low it will not allow water into the heater core to produce heat. If there is water keep an eye on your temperature gauge It should reach at least 140 to 170 degrees. If it is staying colder than that you have a stuck thermostat which is allowing the water to flow to much and not let the engine warm up. The only other solution is if the fan is not working properly replace the fan relay for you blower.
it's either because your coolant isn't hot enough or your heater core is clogged and needs to be replaced.. you might wanna replace your thermostat.. because if thats stuck open then your coolant will constantly be cooled .. and thats not a good thing!!
check the heater hoses see if both of them are hot if one is cool then it eather has a falty heat valve if it has one or a pluged heater core what kind of car is it
as long as the engine temperature is normal, i would suspect a clogged heater core, the dex-cool antifreeze is notorious for building up deposits in cooling system. have heater core flushed first to see if it makes any difference
×